Device for igniting and cutting off gas-jets.



I III! PATENTED AUG. 16, 1904.

F. ROSSBAGH-ROUSSET.

APPLICATION 211,111) DEC. 12. 1901.

DEVICE FOR IGNITING AND CUTTING OFPGAS JETS.

NO MODEL.

UNITED STATES Patented August 16, 1904.

PATENT QEEIQE.

FRITZ ROSSBAGH-ROUSSET, OF TEMPELHOF, GERMANY, ASSIGNOR TO THE FIRM G.GOLIASCH 85 CIE, METALLVVAARENFABRIK, OF

BERLIN, GERMANY.

DEVICE FOR IGNITING AND CUTTING OFF GAS-JETS.

SPECIFICATION forming part of Letters Patent No. 767,663, dated August16, 1904. Application filed December 12, 1901. Serial No. 86,713- (Nomodel.)

To (Z 1071,0771, it may concern:

Be it known that I, FRITZ RossBAoH-RoUs- SET, a subject of the King ofPrussia, German Emperor, residing at Tempelhof, near Berlin, in theKingdom of Prussia, German Empire, have invented a new and useful Devicefor lgniting and Cutting Ofl' Gas-Jets, of which the following is aspecification.

This invention has relation to appliances for lighting and extinguishinggas-jets by variations of the pressure of the gas.

In the automatic gas lighting and extinguishing systems hithertoproposed the operations of lighting and extinguishing has been dependentupon maintained-pressure variationsthat is to say, if the lights are tobe extinguished by a reduction of the pressure in the supply-mains belowthe normal pressure this pressure has to be maintained so long as thelights remain extinguished, the lighting being then efiected by anincrease of the pressure above the normal and its subsequent reductionto normal pressure, which of course has to be maintained until thelights are again extinguished. Such a system could not be made use of incities unless the lamps to be lighted and extinguished at given periodswere included in a distribution entirely independent of or separate fromthe system of distribution in which are included all the lamps or lightsthat are not to be arbitrarily lighted and extinguishedas, for instance,house-lights in contradistinction t0 street-lights, as it is notpossible or desirable to supply gas for house illuminating or heatingpurposes for a definite period and then cut off the supply for adefinite period for obvious reasons. a

My invention has for its object the provision of means whereby pressurevariations may be temporarily or momentarily produced in a supply pipeor main or in a system of gas distribution independently of the normalpressure in such pipe, main, or system of distribution whereby anywell-known appliances capable of controlling the lighting andextinguishing of a jet or any number of jets are set in operation.

My invention has for its further object a simple mechanism controlled bypressure variations and controlling the lighting and extinguishing of agas-jet or any number of such.

. In order that my invention may be fully understood, I will describethe same in detail, reference being had to the accompanying drawings, inwhich Figure 1 is a vertical sectional view illustrating one form ofappliances for producing momentarily pressure variations in a gas-supplypipe and oneform of appliances operated by said variations and operatingto light or extinguish a burner-jet, and Figs. 2 and 3 are verticalsectional views illustrating modifiedconstructions of the appliancescontrolled by pressure variations.

The appliances controlled by pressure variations consist, essentially,as follows: of a casing (0, provided at one end with aninternally-thread ed passage (5 for connection thereto of a gas-supplypipe P and at the opposite end with an externally-threaded branch orboss w for connection thereto of a burner or burner-pipe; of a maingas-passage leading to the branch 10; of a by-pass Z having a small,preferably conical, port '2', controlled by a cone screw -valve 5 andcommunicating with the casing a and with an igniterburner pipe u, asshown in Fig. 1, or with the main supplypassage, as shown in Figs. 2 and8; of a cutoff valve which may control the supply of gas to the main andigniter burners, as shown in Fig. 1, or said valve may control thesupply of gas to the main burner only, as shown in Figs. 2 and 3; of adiaphragm 2', arranged in one side of the casing, and of avalve-operating mechanism controlled by said diaphragm.

Theappliances for producing momentary pressure variations consist,broadly speaking, of a receiver connected to the gas-supply pipe P andmeans for driving out the gas therein to increase the pressure in thesupply-pipe and casing a and of means for drawing gas from thesupply-pipe by suction into said receiver for the purpose of reducingthe pressure in the supply-pipe and in said casing, whereby thediaphragm is deflected in one or the other direction and the valveoperated to open or close the main supply-passage to the burner orburner distributing-pipes or to the latter and the igniter-burner.

Referring more particularly to Fig. l, the casing a has twooppositely-arrangcd pas sages Zand Z, whose outer faces are reverselyinclined and form yalve-seats for a flap-valve 17, secured to a rockingspindle 0, provided with two radial arms 11. one of which is always inengagement with a toothed rack m at the upper end of a rock-lever Z,fulcrumed at Z. This lever is connected above its fulcrum to a lever Z;through a link Z", and said lever Z: is fulcrumed at 7: and has itsshorter arm pivoted to a suitable bracket secured to the dia phragm. Thepassage or by-pass Z communicates with a chamber a" through a smallconical port 1*, controlled by a cone screwvalve 8, and to said chamberis connected the pilot or igniter burner pipe '11 In Fig. 1 I have showna receiver 6, made of a flexible impermeable material and containing adistending or expanding spring Z) for producing pressure variations inpipe P and easing a, said receiver being connected by a pipe P to saidpipe P. The receiver Z) is contained in a casing a, in which is guided afollower or push-button 0, having formed therein a notch or recess f,adapted to be engaged by a locking-pin a on a rod (Z, provided with aknob or button (Z. The rod (Z is pivoted at (Z in a hanger g, pivoted at5/" to a bracket in the casing (Z, and is held in a normal nearlyhorizontal position by a coiled spring ZZ, secured to the casing andinto which the rear end of the rod projects, so that when thepush-button is pushed into the casing t its full extent the radial pin awill snap into the notch f and lock the button 0 against outwardmovement under the stress of the spring 6.

The operation of the apparatus is as follows, it being assumed that thereceiver Z has been suddenly expanded to produce a suction impulse incasing (0, whereby valve 1) has been shifted from its seat on L to itsseat on Z to supply gas to the main burner and cut off the supply of gasto the igniter or pilot burner tube a, one of the radial arms a onrocking spindle 0 lying on the left of the center tooth of the rack atthe upper end of the shifting lever Z and the companion radial arm onsaid spindle lying on the right and above said tooth: To cut off thesupply of gas to the n1ain-burner passage w and to supply gas to thepilotburner tube a, the receiver Z) is suddenly compressed against thestress of its expanding spring, the sudden increase of pressure incasing a deflecting diaphragm outwardly and moving lever Z to the left,the center tooth acting on radial arm a on its right and shiftingvalve 1) from its seat on to its seat on L, thereby also moving thecompanion radial arm a on spindle 0 to the left side of said centertooth, so that when a sudden suction or partial vacuum is produced incasing a by the sudden expansion of receiver Z), the diaphragm if beingthen deflected inwardly and lever Z shifted to the right, its centertooth will act on the said radial arm a on its right and shift the valvefrom its seat on 2. to its seat on Z 1.". (1., back to its positionshown in Fig. 1. These operations may, however, be reversed by simplyreversing the position of valve 12 on its spindle 0 so that a reducedpressure or suction in a will shift the valve from Z to Z and a suddenincrease of pressure from zfto Z This may also be effected by reversingthe location of the passages Z and L, Fig. l, as will be readilyunderstood. inasmuch as the bypass is opened or closed a little beforethe passage 25 is closed or opened, gas admitted to the igniter-burnerin the first case will be ignited by the main-burner flame before thelatter is extinguished and in the second case the gas admitted to themain-burner flame will be ignited by the flame of the igniter-burnerbefore the latter is extinguished.

The valve apparatus shown in Fig. 2 is in all respects like that shownin Fig. 1, except that the main gas-supply passage 6 is extendeddownward below its inlet to form a bypass Z which, as above stated, isin communication with the casing through port 1", controlled byhand-valves, and in that the throw of the valve 1) to the left islimited by an abutment q.

In Fig. 3 1 have shown a modification of the valve-controllingmechanism. In this modification I provide a gravity-valve 12*,controlling a main passage or port leading to branch in and axiallythereof, said valve resting when on its seat On the end of alifting-leverp controlled by a wheel having teeth 19 that act on lever Zand lift it, and therethrough the valve 7), to open the mainsupply-passage. On the spindle of wheel 3) is secured a ratchetwheel a,actuated by a pawl m, pivoted to lever Z", that is rocked by thediaphragm Z, as in the case of lever Z.

There is afurther difference in the construction of the cut-off valvesshown in Figs. 2 and 3 from that shown inFig. 1 in that the igniter-tube.a is dispensed with and a small amount of gas constantly supplied tothe main burner through the by-pass Z to keep it lighted. when the mainsupply-passage is cut off by the valve 39, Fig. 2, or the valve 19*,Fig. 8. The operation of this apparatus is substantially as abovedescribed, and the pressure variations for vibrating the diaphram may beproduced by the appliances above referred to or they may be produced bytemporary or momentary pressure variations in the distributing system.

This apparatus has the advantage of. providing means whereby all or anynumber of jets may be lighted and extinguished at different periods bysuitably varying the number and relative posit-ion of the teeth on thevalve-actuating wheels 2), which control the supply of gas 'to theindividual burners. Thus, forinstance, if. it is desired to light andextinguish certain lamps at-certain locations at stated periods andother lamps. at other points at another stated period the teeth on thecontrolling-wheels p, which control one set. of valves, may be arrangedso as to open or close the valve 9* at each pressure variation, whilethe teeth on the wheels that control the other set of valves may bearranged to open and close the sameby varying the pressure successivelya greater or less number of times. .It is obvious, however, that ineither case the pressure variations are momentary only, so that if theinvention is applied tothe lighting and extinguishing of street-lampssupplied through a network of piping common to all the lights in a cityor district the variations in the pressure would affect the house-lightsbut momentarily and I only at such times when the street-lamps areextinguished, while at all other timesthe pressure in the network mayremain normal. It is furthermore obvious that the pressurevaryingapparatus may be used for controlling a single burner or any number ofburners in a building, or it may be installed at the gas-works or at thedifferent supply-stations. It will furthermore be understood that anyother suction and forcing device may be used instead of the flexible,expansible, and -col lapsible receiver 6, such as a bellows-shapedreceiver or a cylinder and piston or the like.

Having thus described my invention, what I claim as new therein, anddesire to secure by Letters Patent, is

1. In combination, a gas-supply pipe, a burner-passage in communicationtherewith, a cut-off valve adapted to be operated by gasimpulses'produced by variations of the pressure in the supply-pipe toopen and close said passage, a branch pipe connected to said gassupplypipe and means connected to said branch pipe and adapted to be operatedby hand to produce the aforesaid pressure variations in the supply-pipe,substantially as and for the purposes set forth.

2. The combination with a gas-conduit, a burner-passage in communicationtherewith and a valve adapted to be operated by gas impulses produced by,a sudden increase or a sudden decrease of the pressure in the conduit;of a collapsible receiver in communication with said gas-conduit andmeans automatically and rapidly expanding said receiver variations ofthe pressure in the conduit to open or close said passage, and a suctionand forcing device comprising a receiver connected to the conduit andmade of a flexible material, a spring contained therein and tending toexpand the same, means for compressing the receiver and means adapted tolock the same against expansion, for the purpose set forth.

- a pivoted rod carrying a radial arm adapted to engage said notch whenthe receiver is compressed, and a coiled spring acting on the free endof the rod to hold it in a normal position, for the purpose set forth.

6. The combination with a gas-conduit, a

burner-passage in communication therewith,

a cut-off valve controlling said passage, a

toothed wheel andmechanism adapted to be operated by gas impulsesproduced by variations of the pressure in the conduit to impart- 'tosaid toothed wheel a step-by-step rotation;

of a valve-actuating device operated by said toothed wheel to move thevalve from or to its seat, for the purpose set forth.

7. The combination with a gas-conduit, a burner-passage in communicationtherewith, a cut-off valve controlling said passage, a toothed wheel andmechanism adapted to be operated bygas impulses produced by variationsof the pressure in the conduit to impart to said toothed wheel astep-bystep rotation; and a valve-actuating device operated by saidtoothed Wheel to move the valve from or to its seat; of a hand-operateddevice for producing the aforementioned impulses, substantially as setforth.

8. The combination with a casing provided with two gas-passages, with adiaphragm in one of its sides and with means for connecting it to agas-supply pipe, a gravity-valve controlling the flow of gas to one ofsaid passages and a lifting-lever in perpetual contact with said valve;of a toothedwheel and a ratchetwheel revoluble in unison, said toothedwheel in perpetual contact with the lifting-lever, a pawl-leveractuating the ratchet-wheel and means connecting the pawl-lever to thediaphragm and adapted to rock said lever and thereby impart aprogressive rotation to the ratchet-wheel when the diaphragm is vibratedby pressure variations in the casing, for the purposes set forth.

IIO

the ratchet-wheel when the diaphragm is vibrated by pressure variationsin the casing 5 and a suction and forcing device connectible to thecasing for varying the pressure therein, for the purposes set forth.

In testimony that I claim the foregoing as my inventionI have signed myname in pres- 2O ence of two subscribing witnesses.

FRITZ ROSSBACH-ROUSSET.

WVitnesses:

HENRY HAsrER, WOLDEMAR HAUPT.

